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About controls </TITLE>
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<A NAME="X-REF298661083"></A><h1>About controls </h1>
<A NAME="TI2654"></A><h4>About window controls</h4>
<A NAME="TI2655"></A><p>You place controls in a window to request and receive information
from the user and to present information to the user. For a complete
list of standard window controls, open a window in the Window painter
and select Insert&gt;Control.</p>
<A NAME="TI2656"></A><p>If you often use a control or set of controls with certain
properties, such as a group of related radio buttons, you can create
a visual user object that contains the control or set of controls.
For more about user objects, see <A HREF="pbugp129.htm#BCADFDDI">Chapter 15, "Working with User Objects ."</A></p>
<A NAME="TI2657"></A><h4>About events</h4>
<A NAME="TI2658"></A><p>All window controls have events so that users can act on the
controls. You write scripts that determine the processing that takes
place when an event occurs in the control. </p>
<A NAME="TI2659"></A><p>Drawing controls are usually used only to make your window
more attractive or to group controls. Only constructor and destructor
events are defined for them, but you can define your own events
if needed. The drawing controls are Line, Oval, Rectangle, and RoundRectangle. </p>

